9N trans fill plug

Hello, I have aquired a 1940 9N ser 10747. If I am correct the tractor is still early enough that the transmission(despite having a steering box mounted dipstick) should still have the side fill plug and the trans number stamped in it but it has neither. BUT it has a Sherman Step-up in it. So I am guessing that when the Sherm went in, rather than swapping it to helical gears they just swapped in an entire 2N transmission. Am I correct, should that it have a level plug and a stamped number?

Follow Ups:

• Re: 9N trans fill plug - Kirk-NJ 05:08:39 07/27/24 (1)
  • Re: 9N trans fill plug - kevin 08:08:41 07/28/24 (0)
• Re: 9N trans fill plug - Farmer Brown 04:43:13 07/27/24 (0)
• Re: 9N trans fill plug - Del Huebner 16:28:50 07/26/24 (1)
  • Re: 9N trans fill plug - kevin 20:39:05 07/26/24 (0)

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